spiral

²spiral

noun

Definition of SPIRAL

1

a : the path of a point in a plane moving around a central point while continuously receding from or approaching it b : a three-dimensional curve (as a helix) with one or more turns about an axis

2

: a single turn or coil in a spiral object

3

: something having a spiral form as: a : spiral galaxy b (1) : a spiral flight (2) : a kick or pass in which a football rotates on its long axis while moving through the air

4

: a continuously spreading and accelerating increase or decrease <wage spirals>

Examples of SPIRAL

1. The glider flew in a wide spiral over the field.
2. The quarterback threw a tight spiral to the receiver.

First Known Use of SPIRAL

1656